As CIO at Citigroup, Adams was responsible for the global focus and leadership of Citigroup's worldwide corporate technology infrastructure and systems. He led the CIO Council with responsibility for the enterprise-wide direction of information technology, and was a member of the Citigroup Management Committee.

"Marvin Adams is a leader who has wide-ranging experience in technology and operations both within and outside of financial services," said Fidelity president Rodger Lawson, to whom Adams will report. "As our business relies more and more upon robust technology solutions coupled with efficient operations, Marv's background suits him ideally to help us take the greatest possible advantage of our market-leading capabilities in these areas."